/Engine/Plugins/Experimental/LearningAgents/Source/LearningAgents/Public/LearningAgentsManagerComponent.h
During this event, any additional logic required for when agents are added can be executed.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintNativeEvent, Category="LearningAgents") void AgentsAdded ( const [TArray](API\Runtime\Core\Containers\TArray)< int32 > & AgentIds )